Current collector

Abstract

Current collector for a third rail, including a base parallelogram extending from a vehicle, with a mounting for a collector shoe extending from the parallelogram, wherein the base parallelogram has a first leg running on the rail side, a second leg running along the first leg away from the rail as well as third and fourth legs connected in an articulating fashion with first and second ends, respectively, of the first and second legs. The mounting for the collector shoe is connected with a single leg adjustable in relation to the vehicle through at least one of its swivel axes, and the mounting is connected to the first or the fourth leg by means of at least one connection having a predetermined breaking point.

1. Current collector ( 32 ) for a third rail ( 74 ), comprising a base parallelogram ( 20 ) extending from a vehicle, with a mounting ( 58 ) for a collector shoe ( 30 ,  68 ) extending from said parallelogram and constructed and arranged for contact with the third rail below the collector shoe, wherein the base parallelogram comprises a first leg ( 22 ,  38 ) running on the rail side, a second leg ( 26 ,  40 ) running along the first leg away from the rail as well as third and fourth legs ( 24 ,  28 ,  42 ,  44 ) connected in an articulating fashion with first and second ends, respectively, of the first and second legs and wherein the mounting for the collector shoe is connected with a single leg adjustable in relation to the vehicle through at least one of its swivel axes, and wherein the mounting ( 58 ) is connected to the first or the fourth leg ( 22 ,  38 ,  46 ;  24 ,  44 ,  52 ) by means of at least one connection ( 64 ,  66 ) comprising a predetermined breaking point ( 60 ,  62 ). 
   
   
     2. Current collector pursuant to  claim 1 , wherein the mounting ( 58 ) for the collector shoe ( 68 ) is connected to a leg ( 24 ,  44 ,  52 ) that is adjustable in relation to the vehicle with its two swivel axes. 
   
   
     3. Current collector pursuant to  claim 1 , wherein the third leg ( 28 ,  42 ) connecting the first ends of the first and second legs ( 22 ,  26 ,  38 ,  40 ) is arranged in a stationary fashion in relation to the vehicle or housing ( 33 ) of the current collector ( 32 ) connected to said vehicle, in that the fourth leg ( 24 ,  44 ,  52 ) is adjustable in relation to the vehicle with its swivel axes ( 78 ,  80 ) connected to the first and the second leg, and in that the mounting ( 58 ) for the collector shoe ( 68 ) extends from the fourth leg. 
   
   
     4. Current collector pursuant to  claim 1 , wherein the mounting ( 58 ) is connected to the first or the fourth leg ( 22 ,  24 ,  38 ,  44 ) by means of several connections ( 64 ,  66 ), comprising a predetermined breaking point ( 60 ,  62 ), respectively. 
   
   
     5. Current collector pursuant to  claim 1 , wherein the collector shoe ( 68 ) is connected to the mounting ( 58 ) in an electrically conductive fashion by means of the connection or connections ( 64 ,  66 ). 
   
   
     6. Current collector pursuant to  claim 1 , wherein a current conductor leading to a drive of the vehicle extends from the leg ( 22 ,  24 ,  38 ,  44 ) connected to the mounting ( 52 ), from the fourth leg that is designed as a head part ( 52 ) of the current collector. 
   
   
     7. Current collector pursuant to  claim 1 , wherein an emergency running shoe ( 98 ), which can be supported by the third rail ( 74 ), extends from the fourth leg ( 24 ,  44 ) or the head part ( 52 ). 
   
   
     8. Current collector pursuant to  claim 1 , wherein the third leg ( 28 ,  42 ) is a segment of a housing ( 33 ) of the current collector ( 32 ). 
   
   
     9. Current collector pursuant to  claim 1 , wherein both the first leg ( 22 ,  38 ) and the second leg ( 26 ,  40 ) consist of electrically insulating material. 
   
   
     10. Current collector pursuant to  claim 1 , wherein the second leg ( 26 ,  40 ) is formed by at least two bar-shaped elements ( 48 ,  50 ). 
   
   
     11. Current collector pursuant to  claim 1 , wherein the first leg ( 22 ,  38 ) in relation to a line connecting its swivel axes ( 78 ,  82 ) forms an angle φ with the third rail ( 74 ), with φ≦15°, when the collector shoe ( 68 ) is supported by the third rail. 
   
   
     12. Current collector pursuant to  claim 1 , wherein a spring element ( 94 ) spring, which applies a pressure force onto the first leg ( 22 ,  38 ), extends from the housing ( 33 ) of the current collector ( 32 ) or from the vehicle from a first articulated point ( 92 ), said element being connected with the first leg in a second articulated point ( 96 ), in that the second articulated point is located between the swivel axes ( 78 ,  82 ) of the first leg, in that the second articulated point runs between the third rail and a line connecting the first articulated point with the rotational axis connecting the first leg with the third leg ( 28 ,  42 ) when the collector shoe ( 68 ) is supported by the third rail ( 74 ), and in that in a lifted position of the current collector the second articulated point runs between the line and the vehicle or mounting of the housing ( 33 ) to the vehicle, wherein the pressure force acting upon the second articulated point leads to an automatic mounting layout of the base parallelogram ( 20 ) in the raised position. 
   
   
     13. Current collector pursuant to  claim 1 , wherein the first leg ( 22 ,  38 ), is connected by means of a hollow shaft ( 82 ) as the swivel axis to the side flanges of a segment of the housing ( 33 ) having a U-shaped profile, said side legs being the third leg. 
   
   
     14. Current collector pursuant to  claim 1 , wherein bar-shaped elements forming the second leg ( 26 ,  40 ) are connected to the third or fourth leg ( 24 ,  28 ,  42 ,  44 ) by means of dome-shaped seating points. 
   
   
     15. Current collector pursuant to  claim 1 , wherein the first leg and the second leg are short legs ( 24 , 28 ) and the third leg and the fourth leg are short legs, and the mounting ( 58 ) extends from a short leg ( 24 ) or an extension thereof. 
   
   
     16. Current collector pursuant to  claim 4 , wherein the connections comprise bolts. 
   
   
     17. Current collector pursuant to  claim 5 , wherein the connections comprise bolts. 
   
   
     18. Current collector pursuant to  claim 10 , wherein the bar shaped elements comprise rods. 
   
   
     19. Current collector pursuant to  claim 12 , wherein the spring element is a pressure spring.